Apparatus and method for sealing a vessel puncture opening

Patent metadata

Field	Value
Publication number	US-9339260-B2
Application number	US-201213370793-A
Country	US
Kind code	B2
Filing date	Feb 10, 2012
Priority date	Nov 30, 2007
Publication date	May 17, 2016
Grant date	May 17, 2016

Abstract

A device for sealing a puncture opening may include a base frame having a delivery configuration, wherein the base frame is retracted to have a relatively smaller overall profile, and a deployed configuration, wherein the base frame is extended to have a relatively larger overall profile. The base frame is sized to engage an interior surface of the blood vessel wall in the deployed configuration. A sealing section is coupled to the base frame, the sealing section having an initial configuration, wherein the sealing section permits fluid flow, and a barrier configuration, wherein the sealing section prevents fluid flow. The sealing section in the barrier configuration is sized to block fluid flow through the puncture opening when the base frame is in the deployed configuration.

First claim

What is claimed is:

1. A sealing device for percutaneously sealing a puncture opening in a wall of a blood vessel, the sealing device comprising:
a cylindrical base frame having a sealing section coupled thereto and defining a longitudinal axis;
wherein the base frame is movable between a delivery configuration in which the base frame is retracted to have a relatively smaller overall profile and a deployed configuration in which the base frame is extended to have a relatively larger overall profile;
wherein the base frame is sized to engage an interior surface of the blood vessel wall when in the deployed configuration;
wherein the sealing section is configured to prevent fluid flow through the puncture opening while permitting fluid flow through the blood vessel in the deployed configuration;
further including a tether attached at a middle portion of the sealing section;
wherein the tether extends away from the middle portion of the sealing section transversely relative to the longitudinal axis;
wherein the sealing section comprises a bi-stable sealing structure having a first stable state corresponding to an initial configuration and a second stable state corresponding to a barrier configuration;
wherein the sealing section comprises a plurality of braided sealing filaments;
wherein the sealing filaments comprise an expandable material, wherein each filament has a smaller volume in the initial configuration and a larger volume in the barrier configuration;
wherein the expandable material comprises an electroactive polymer that selectively moves from the initial configuration to the barrier configuration in response to an electric current supplied to the expandable material.

Assignees

• Eidenschink Tracee
• Weber Jan
• Atanasoska Lilliana
• Boston Scient Scimed Inc

Inventors

• Eidenschink Tracee
• Weber Jan
• Atanasoska Lilliana

Classifications

• A61B2017/00778

  Operations on blood vessels (A61B2017/22097, A61B2017/320741 take precedence) · CPC title

• A61B17/12022

  Occluding by internal devices, e.g. balloons or releasable wires (plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20) · CPC title

• A61B17/12159

  Solid plugs; being solid before insertion · CPC title

• A61B2017/00871

  polymeric · CPC title

• A61B17/1219

  expandable in contact with liquids · CPC title